panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 95962 88093 32767 0x4000010 0x4000000 0K syz-executor 314929 44523 32767 0x10 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340aafa) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80002f0d6734,3,400000000140,ffff80002f0d6768,0,0,526d1a7b050fafef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c4f6f88,ffff80002f0d68a0,ffff80002f0d67f0) at sys_sysctl+0x425 syscall(ffff80002f0d68a0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0d68a0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xebc94dcefc0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340aafa) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80002f0d6734,3,400000000140,ffff80002f0d6768,0,0,526d1a7b050fafef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c4f6f88,ffff80002f0d68a0,ffff80002f0d67f0) at sys_sysctl+0x425 syscall(ffff80002f0d68a0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0d68a0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xebc94dcefc0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002f0d64c0 rbx 0xffffffff837a2dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff80003c4f6f88 rax 0xffffffff837a1ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc27f60508f14c5bd r11 0xf658f467f5e1a25f r12 0xffffffff837a2bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8324fe35 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f0d64b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=95962 pid=88093 tcnt=3 stat=onproc flags process=4000010 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4f67d8,0xffff80003c4f7228 process=0xffff8000ffff0950 user=0xffff80002f0d1000, vmspace=0xfffffd806c176578 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 62653 429607 16444 32767 2 0x10 syz-executor 62653 332060 16444 32767 3 0x4000090 kqsel syz-executor 62653 145655 16444 32767 3 0x4000090 fsleep syz-executor 62653 340995 16444 32767 3 0x4000090 fsleep syz-executor 88093 100645 72552 32767 2 0x4000010 syz-executor *88093 95962 72552 32767 7 0x4000010 syz-executor 88093 164490 72552 32767 3 0x4000090 fsleep syz-executor 44523 275009 13888 32767 2 0x10 syz-executor 44523 292518 13888 32767 3 0x4000090 semwait syz-executor 44523 371120 13888 32767 3 0x4000090 semwait syz-executor 44523 314929 13888 32767 7 0x4000010 syz-executor 8816 518244 8286 32767 2 0x10 syz-executor 8816 236507 8286 32767 3 0x4000090 fsleep syz-executor 72552 505394 98777 32767 3 0x90 nanoslp syz-executor 98777 521083 86963 0 3 0x82 wait syz-executor 10448 463499 0 0 3 0x14200 bored sosplice 14279 358872 79742 32767 3 0x90 nanoslp syz-executor 8286 88937 38411 32767 3 0x90 nanoslp syz-executor 17555 96129 48219 32767 3 0x90 piperd syz-executor 13888 382738 82263 32767 3 0x90 nanoslp syz-executor 16444 473561 11338 32767 3 0x90 nanoslp syz-executor 3392 415424 34258 32767 3 0x90 piperd syz-executor 79742 43302 86963 0 3 0x82 wait syz-executor 11338 189156 86963 0 3 0x82 wait syz-executor 34258 265456 86963 0 3 0x82 wait syz-executor 48219 270341 86963 0 3 0x82 wait syz-executor 38411 487817 86963 0 3 0x82 wait syz-executor 82263 374073 86963 0 3 0x82 wait syz-executor 86963 134544 93097 0 3 0x82 nanoslp syz-executor 93097 399311 79431 0 3 0x10008a sigsusp ksh 79431 412492 57405 0 3 0x98 kqread sshd-session 57405 180834 52209 0 3 0x92 kqread sshd-session 40934 293089 1 0 3 0x100083 ttyin getty 52209 65827 1 0 3 0x88 kqread sshd 25954 85022 19118 73 3 0x1100090 kqread syslogd 19118 281521 1 0 3 0x100082 sbwait syslogd 53047 136079 1 0 3 0x100080 kqread resolvd 69071 278563 98387 77 3 0x100092 kqread dhcpleased 16977 482958 98387 77 3 0x100092 kqread dhcpleased 98387 348455 1 0 3 0x80 kqread dhcpleased 53490 403734 0 0 3 0x14200 bored smr 3236 500345 0 0 2 0x14200 zerothread 78583 521410 0 0 3 0x14200 aiodoned aiodoned 62822 374991 0 0 3 0x14200 syncer update 76962 291141 0 0 3 0x14200 cleaner cleaner 13418 472420 0 0 3 0x14200 reaper reaper 31092 420525 0 0 3 0x14200 pgdaemon pagedaemon 29356 113209 0 0 3 0x14200 bored viomb 36570 230873 0 0 3 0x40014200 acpi0 acpi0 49956 26360 0 0 3 0x40014200 idle1 33200 514009 0 0 3 0x14200 bored softnet3 17819 502321 0 0 3 0x14200 bored softnet2 7932 199030 0 0 3 0x14200 bored softnet1 80473 1711 0 0 3 0x14200 bored softnet0 26278 446588 0 0 3 0x14200 bored systqmp 71522 438825 0 0 3 0x14200 bored systq 37620 191881 0 0 3 0x14200 tmoslp softclockmp 23121 14979 0 0 3 0x40014200 tmoslp softclock 60228 377247 0 0 3 0x40014200 idle0 1 368970 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 88093 (syz-executor) thread 0xffff80003c4f6f88 (95962) shared rwlock vmmaplk r = 0 (0xfffffd806c176678) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #3 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 #4 net_sysctl+0x69a sys/kern/uipc_domain.c:259 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839d5030) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:192 #2 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #3 sys_sysctl+0x425 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff83889f08) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #4 sys_sysctl+0x425 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 10952K 10966K 166960K 11270 0 pcb 17 12K 12K 166960K 17 0 rtable 218 6K 6K 166960K 451 0 pf 29 16K 16K 166960K 33 0 ifaddr 38 6K 7K 166960K 48 0 ifgroup 46 2K 2K 166960K 54 0 sysctl 3 1K 1K 166960K 3 0 counters 62 36K 36K 166960K 66 0 ioctlops 0 0K 2K 166960K 40 0 iov 0 0K 12K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1492 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 21 77K 121K 166960K 376 0 sigio 0 0K 0K 166960K 1 0 proc 58 79K 115K 166960K 539 0 subproc 63 3K 4K 166960K 207 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 42 0 in_multi 88 6K 7K 166960K 112 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 384 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 227 65K 75K 166960K 4452 0 UVM aobj 16 2K 2K 166960K 17 0 pinsyscall 42 84K 112K 166960K 1399 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 15 0 NDP 10 0K 2K 166960K 30 0 temp 40 8632K 8696K 166960K 4636 0 kqueue 14 22K 25K 166960K 63 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 47 0 44 1 0 1 1 0 8 0 rtentry 112 127 0 25 4 0 4 4 0 8 0 unpcb 144 226 0 209 2 0 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 102 0 95 4 1 3 4 0 8 2 arp 120 21 0 4 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 0 1 0 1 1 0 8 0 inpcb 376 235 0 222 5 1 4 5 0 8 2 nd6 136 31 0 8 1 0 1 1 0 8 0 kcovpl 48 23 0 16 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 505 0 91 29 2 27 29 0 8 1 art_table 32 506 0 91 4 0 4 4 0 8 0 art_node 16 126 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 1 0 1 1 0 8 0 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 14 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1788 0 265 96 0 96 96 0 8 0 ffsino 280 1788 0 265 109 0 109 109 0 8 0 nchpl 144 2212 0 516 63 0 63 63 0 8 0 uvmvnodes 80 2004 0 0 41 0 41 41 0 8 0 vnodes 216 2004 0 0 112 0 112 112 0 8 0 namei 1024 6957 0 6957 2 1 1 2 0 8 1 percpumem 16 47 0 2 1 0 1 1 0 8 0 kstatmem 264 24 0 4 2 0 2 2 0 8 0 scxspl 216 7628 0 7628 3 2 1 2 1 8 1 plimitpl 152 152 0 130 2 0 2 2 0 8 1 sigapl 424 618 0 566 7 0 7 7 0 8 0 futexpl 64 2474 0 2470 1 0 1 1 0 8 0 knotepl 120 306 0 0 10 0 10 10 0 8 0 kqueuepl 216 75 0 65 1 0 1 1 0 8 0 pipepl 328 195 0 168 6 0 6 6 0 8 3 fdescpl 504 599 0 566 7 2 5 6 0 8 0 filepl 152 2537 0 2330 11 0 11 11 0 8 0 lockfpl 104 64 0 61 1 0 1 1 0 8 0 lockfspl 48 28 0 25 1 0 1 1 0 8 0 sessionpl 144 37 0 22 1 0 1 1 0 8 0 pgrppl 48 127 0 105 1 0 1 1 0 8 0 ucredpl 104 294 0 276 1 0 1 1 0 8 0 zombiepl 144 567 0 566 1 0 1 1 0 8 0 processpl 1176 618 0 566 5 0 5 5 0 8 0 procpl 656 916 0 855 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 688 510 0 477 6 1 5 6 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 209 0 0 14 0 14 14 0 8 0 bufpl 280 2841 0 124 195 0 195 195 0 8 0 anonpl 24 130514 0 127410 57 1 56 56 0 184 27 amapchunkpl 152 14554 0 14031 33 0 33 33 0 158 10 amappl16 200 2703 0 2686 19 9 10 14 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 109 0 99 1 0 1 1 0 8 0 amappl13 176 7 0 6 2 1 1 1 0 8 0 amappl12 168 1208 0 1175 2 0 2 2 0 8 0 amappl11 160 44 0 34 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 237 0 237 1 1 0 1 0 8 0 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 124 0 114 1 0 1 1 0 8 0 amappl6 120 177 0 174 1 0 1 1 0 8 0 amappl5 112 129 0 122 1 0 1 1 0 8 0 amappl4 104 282 0 268 1 0 1 1 0 8 0 amappl3 96 2419 0 2296 4 0 4 4 0 8 0 amappl2 88 625 0 568 2 0 2 2 0 8 0 amappl1 80 8341 0 7808 13 0 13 13 0 8 0 amappl 88 4083 0 3903 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 16 0 1 1 0 1 1 0 8 0 uaddrrnd 24 599 0 566 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 566 1 0 1 1 0 8 0 vmmpekpl 168 6764 0 6724 3 0 3 3 0 8 0 vmmpepl 168 43350 0 41511 93 2 91 93 0 357 5 vmsppl 456 598 0 566 7 2 5 6 0 8 0 rwobjpl 64 17128 0 14282 48 0 48 48 0 8 1 pdppl 4096 1206 0 1132 116 34 82 96 0 8 8 pvpl 32 16924 0 0 137 0 137 137 0 265 0 pmappl 248 598 0 566 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 297 0 43 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340aafa) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c176578,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80002f0d6734,3,400000000140,ffff80002f0d6768,0,0,526d1a7b050fafef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c4f6f88,ffff80002f0d68a0,ffff80002f0d67f0) at sys_sysctl+0x425 syscall(ffff80002f0d68a0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0d68a0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xebc94dcefc0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029aabff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839d4e28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839d4e28) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002f0a0d80) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0a0d80) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a7adb2c200, count: 9 ddb{1}> trace x86_ipi_db(ffff800029aabff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839d4e28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839d4e28) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002f0a0d80) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0a0d80) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a7adb2c200, count: -6